Lecithin is a type of ________.
A. phospholipid
B. fatty acid
C. triglyceride
D. sterol
Answer: A
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Patients who have structural heart disease but demonstrate no symptoms of heart failure are classified as having which stage of the disease?
A. A B. B C. C D. D E. E
The task of acquiring enough vitamin B12 may pose a problem to vegans because:
a. fibers in vegetables inhibit its absorption. b. they lack the intrinsic factor. c. it is found naturally only in animal-derived products. d. deficiency may occur from excess intake of soy products.
A tumor that infiltrates the bone marrow results in what type of cancer?
a. Leukemia b. Carcinoma c. Sarcoma d. Lymphoma
Which organ/organ system plays the primary role in maintaining acid-base balance?
a. lungs b. skin c. GI tract d. kidneys e. liver